The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 19, 1976
Filed:
Apr. 04, 1975
Erwin Pilz, Rastatt, DT;
Berthold Schmidt, Karlsruhe, DT;
Stierlen-Maquet AG, Rastatt, DT;
Abstract
A device for recovering heat from dishwashing machines, especially dishwashing machines of the type in which dishes to be washed enter the dishwashing machine through an opening in one side and are removed from the dishwashing machine from an opening in the opposite side of the machine. The device has air inlet means positioned to receive heated air from the openings in the dishwashing machine and conveys the air via duct work through a heat exchanger. The heat pump compresses coolant fluid which then flows through condenser means and then to the evaporator wherein the heat exchange with the air occurs and then back to the pump. Water undergoes heat exchange with the coolant fluid in the condenser means and this water may be used during the dishwasher cycle. Control means control the supply of coolant fluid to the evaporator and the starting and stopping of the drive motor for the pump.